Cargo box for attachment to the rear window of trucks



FIG. 1 is a perspective view of a cargo box for attachment to the rear windows of trucks embodying our new design;

FIG. 2 is a top plan view;

FIG. 3 is a rear elevational view;

FIG. 4 is a bottom plan view;

FIG. 5 is a left side elevational view, with the opposite side being a mirror image thereof; and,

FIG. 6 is a front elevational view. 

The ornamental design for cargo box for attachment to the rear window of trucks, as shown and described. 